I also think this is a compelling image. However, I would clone away the house and the white structure at the beach edge of the bush.
I think if you tilted the camera down, you may miss the interesting land mass to the right.
I would try cropping the top half of the sky to give more prominence to the dunes.
If you did not like the resultant long, thin image after cropping the sky, I would use content aware scaling to compress the right third of the image (but not the right land mass) until you had a satisfying ratio with the height of the image. Doing this, would reduce the long distances between the orange "walls" of the dunes in that area and provide more interest there.